EP3079249A3 - Constant on-time pulse width control-based scheme used in voltage converter - Google Patents

Constant on-time pulse width control-based scheme used in voltage converter Download PDF

Info

Publication number
EP3079249A3
EP3079249A3 EP16153775.8A EP16153775A EP3079249A3 EP 3079249 A3 EP3079249 A3 EP 3079249A3 EP 16153775 A EP16153775 A EP 16153775A EP 3079249 A3 EP3079249 A3 EP 3079249A3
Authority
EP
European Patent Office
Prior art keywords
generating
pulse width
voltage converter
time pulse
constant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP16153775.8A
Other languages
German (de)
French (fr)
Other versions
EP3079249A2 (en
Inventor
Hua-Chiang Huang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MediaTek Inc
Original Assignee
MediaTek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of EP3079249A2 publication Critical patent/EP3079249A2/en
Publication of EP3079249A3 publication Critical patent/EP3079249A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A constant on-time pulse width control-based apparatus (103) used in a voltage converter (100) includes a comparator (110), a logic circuit (115), and a controller (105). The comparator (110) is configured for generating a logic control signal to a logic circuit (115) according to two resultant signals of the controller (105). The logic circuit (115) is configured for generating a pulse control signal with an on-time pulse width to charge an output capacitor (Cout) of an output stage circuit (120) of the voltage converter (100) according to the logic control signal. The controller (105) is configured for generating the two resultant signals to the comparator (110) by detecting an inductor current signal (IL) from an inductor of the output stage circuit (120), generating a voltage ramp signal (Vramp), amplifying and generating an output voltage ripple signal based on a reference voltage (Vref).
EP16153775.8A 2015-04-09 2016-02-02 Constant on-time pulse width control-based scheme used in voltage converter Ceased EP3079249A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562145212P 2015-04-09 2015-04-09
US15/007,228 US9831774B2 (en) 2015-04-09 2016-01-27 Constant on-time pulse width control-based scheme used in voltage converter

Publications (2)

Publication Number Publication Date
EP3079249A2 EP3079249A2 (en) 2016-10-12
EP3079249A3 true EP3079249A3 (en) 2016-11-23

Family

ID=55275028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16153775.8A Ceased EP3079249A3 (en) 2015-04-09 2016-02-02 Constant on-time pulse width control-based scheme used in voltage converter

Country Status (3)

Country Link
US (1) US9831774B2 (en)
EP (1) EP3079249A3 (en)
CN (1) CN106059292A (en)

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* Cited by examiner, † Cited by third party
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US9831774B2 (en) * 2015-04-09 2017-11-28 Mediatek Inc. Constant on-time pulse width control-based scheme used in voltage converter
US9954440B2 (en) * 2016-05-13 2018-04-24 Mediatek Inc. Controller for DC/DC power converters
US10886833B2 (en) 2016-05-24 2021-01-05 Fairchild Semiconductor Corporation Inductor current emulation for output current monitoring
US9853548B1 (en) * 2017-02-06 2017-12-26 Alpha And Omega Semiconductor Incorporated Accurate high-side current emulation with auto-conversion for smart power stage applications
US10680522B2 (en) * 2017-02-09 2020-06-09 Rohm Co., Ltd. Switching regulator and control device therefor
US10411595B2 (en) 2017-12-21 2019-09-10 Nxp Usa, Inc. Ripple generation device and method for a constant on-time voltage regulator
US10218274B1 (en) * 2017-12-22 2019-02-26 Nxp B.V. System and method for generating a ripple voltage for a ripple based constant-on-time DC-DC converter
CN110086324B (en) * 2018-01-25 2021-05-28 立锜科技股份有限公司 Switching type power supply conversion circuit and control circuit therein
US10594209B2 (en) * 2018-01-25 2020-03-17 Richtek Technology Corporation Switching power converter circuit and control circuit thereof
CN110830011B (en) * 2018-08-07 2023-03-24 瑞昱半导体股份有限公司 Clock circuit with pulse width adjusting module
US10784917B2 (en) * 2018-11-27 2020-09-22 Texas Instruments Incorporated PSI5 base current sampling in synchronous mode
US11171563B2 (en) * 2019-04-30 2021-11-09 Apple Inc. Phase regulation in a peak current mode power converter
CN112019045B (en) * 2019-05-29 2021-09-21 晶豪科技股份有限公司 Fixed open-time controller and buck converter device using the same
KR20210010241A (en) * 2019-07-19 2021-01-27 매그나칩 반도체 유한회사 Integrating circuit and control method thereof, apparatus comprising the same
US10944322B1 (en) * 2019-10-24 2021-03-09 Kinetic Technologies Adaptive on-time DC-to-DC buck regulators with constant switching frequency
CN114189133A (en) 2020-09-15 2022-03-15 力智电子股份有限公司 Control circuit of power converter
CN114389451A (en) * 2020-10-21 2022-04-22 圣邦微电子（北京）股份有限公司 Switch converter and control circuit and control method thereof
CN114499123A (en) 2020-11-12 2022-05-13 力智电子股份有限公司 Control circuit of power converter
CN114696606A (en) * 2020-12-31 2022-07-01 圣邦微电子（北京）股份有限公司 Ramp voltage generation circuit of buck-boost converter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6366070B1 (en) * 2001-07-12 2002-04-02 Analog Devices, Inc. Switching voltage regulator with dual modulation control scheme
US20110031948A1 (en) * 2009-08-05 2011-02-10 Min Chu Chien Dc-dc converter
US20110234188A1 (en) * 2010-03-25 2011-09-29 Liang-Hsiang Chiu Buck Converter with Internal Ripple Compensation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7541795B1 (en) * 2006-02-09 2009-06-02 National Semiconductor Corporation Apparatus and method for start-up and over-current protection for a regulator
KR20090050318A (en) * 2007-11-15 2009-05-20 삼성전자주식회사 Power converter having auto conversion function for pulse skip mode and control method of thereof
US7888923B2 (en) 2009-03-27 2011-02-15 Texas Instruments Incorporated Dynamic phase manager for multi-phase switching regulators
US8879283B2 (en) * 2009-11-05 2014-11-04 On-Bright Electronics (Shanghai) Co., Ltd. System and method providing protection in the event of current sensing failure for power converter
US9325233B2 (en) * 2014-07-01 2016-04-26 Texas Instruments Incorporated DC to DC converter and PWM controller with adaptive compensation circuit
US9831774B2 (en) * 2015-04-09 2017-11-28 Mediatek Inc. Constant on-time pulse width control-based scheme used in voltage converter
US9735680B2 (en) * 2015-07-23 2017-08-15 Mediatek Inc. Constant on-time pulse width control-based scheme including capabilities of fast transient response and adaptively adjusting on-time pulse width

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6366070B1 (en) * 2001-07-12 2002-04-02 Analog Devices, Inc. Switching voltage regulator with dual modulation control scheme
US20110031948A1 (en) * 2009-08-05 2011-02-10 Min Chu Chien Dc-dc converter
US20110234188A1 (en) * 2010-03-25 2011-09-29 Liang-Hsiang Chiu Buck Converter with Internal Ripple Compensation

Also Published As

Publication number Publication date
US20160301307A1 (en) 2016-10-13
CN106059292A (en) 2016-10-26
US9831774B2 (en) 2017-11-28
EP3079249A2 (en) 2016-10-12

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